Quick electric water heater

Abstract

The invention discloses a quick electric water heater. The quick electric water heater comprises a preheating water tank and a water outlet pipe. An instant heating water tank is arranged in the preheating water tank. The instant heating water tank comprises a bottom surface positioned at the lower part and gradually increasing in radial dimension from bottom to top and a peripheral surface positioned at the upper part of the bottom surface and gradually decreasing in radial dimension from bottom to top. The bottom of the peripheral surface and the top of the bottom surface are connected witheach other, and water inlets distributed in the circumferential direction of the instant heating water tank are formed in the instant heating water tank. Outside cold water flows into the preheating water tank from the bottom of the preheating water tank through the portion between the bottom surface of the preheating water tank and the bottom surface of the instant heating water tank and enters the instant heating water tank through the water inlets. A heating pipe is laid in the instant heating water tank. An opening is formed in the top of the instant heating water tank. The top of the instant heating water tank is communicated with the water outlet pipe from the top of the preheating water tank through the opening. The quick electric water heater is compact and small in structure and small in occupied space and has the functions of quick heating and quick hot water drainage.

Description

[0001] This application is patent application number 201510484348.7, the application date is August 07, 2015, and the invention name is a divisional application of "a fast electric water heater". technical field [0002] The invention relates to a water heater, in particular to an instant electric water heater. Background technique [0003] The existing pre-mixed electric water heaters usually use a set of preheating electric water heaters and a set of collector electric water heaters in combination, each set includes a water tank, water inlet pipe, water outlet pipe, electric heating element, etc. It is very inconvenient to use. [0004] There is also a kind of pre-mixed heat electric water heater, and the instant hot water tank is arranged in the electric water tank. For example, a constant temperature pre-mixed heat electric water heater disclosed in Chinese patent CN201269620Y includes a pre-heated water tank, an electric heating element, an instant water tank, an outlet...

AI Technical Summary

Problems solved by technology

[0005] Although the water heater is small in size and can adjust the temperature sensitively, the speed of hot water output is not particularly fast, and the water heater, that is, the hot water tank is located in the preheating water tank, both of which are cylindrical, so installation and disassembly Very inconvenient, and the sealing effect is not very good, it is easy to cause heat loss in the water tank

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